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Glare

 

Negative sensation caused by excessive and uncontrolled brightness in the visual field

 

The degree of glare not only depends on the luminaire but also the positon of the observer, the room dimensions and reflections of the surfaces. 

Unified glare rating (UGR) - measure of the glare in a given environment

  • UGR data should be provided by the manufacturer of the luminaire often found in the specifications or datasheets of the luminaire (e.g. in an office, the luminaires should have an UGR ≤ 19)

 

 

Car park1

Direct glare from windows and luminaires.

Car park2

Reflected glare on computer screen from ceiling luminaries.

 

If there are no luminaire specifications available you can also observe and experience the glare:

  • Is the luminaire causing you an unpleasant feeling to your eyes?
  • Is it blinding you?

 

Discomfort glare  it is difficult to see an object

   

Disability glare reduced visual performance

                         

 

 

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Events  

 

November 16

Zen and the Art of Lighting Design

Presented by Peter A. Hugh

 

November 20

Smart Street Lighting Leadership

Presented by Eric Woods and Barbara Kreissler

 

December 6

Light in Space

Presented by Maarten Jamin, Vesna Petresin, Gernot Oberfell

 

January 17

Light Pollution - The Effects on Animals and Humans

Presented by Kamiel Spoelstra, Steven Lockley

 

February 20

A Fine Dining Experience (The Art of Consulting as a Lighting Designer)

Presented by Dr. Emrah Baki Ulas

 

March 21

Fundamental and Inspirational Light

Presented by Enrique Garcia-Carrera


Paul Traynor
Paul Traynor
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